Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is an infinite bus bar?

34 73232

In a d.c current, the power is the product of voltage and current. This relationship does not always apply to effective(r.m.s) values in an a.c circuit. Explain the reason for this.

2 5386

In a d.c circuit, if current and resistance are known, power (P=I*I*R) can be determined. This relationship also applied to an a.c circuit. Comment the reason for this.

3 4131

Explain why machinery used on a.c supply is usually rated in KVA instead of KW?

EEE, Mtandt,

10 19848

What is meant by power factor correction?

Aspire,

5 11010

when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//

1578

what is the earthing condition between earth & phase.

ABB,

3 5030

what is the earthing condition between earth & neutral.

ABB,

6 9352

how percentage impedence effect on the size of the power transformer?

Bhel,

2 6140

I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2

2412

Why electrical engineer use Cu Strip for transformer neutral why not GI Strip? What if we use GI instead of Cu does it affects the transformer performance.

7 15495

WHAT IS MVA RATING OF KOTHAGUDAM THERMAL STATION POWER TRANSFORMER?

CESC, Power Grid,

2 6186

what collector is used for 100kmph-120kmph tracion application?

APTransco,

3 5190

which starter is used for synchronous motor

APTransco, IBM,

18 21366

you have an automatic voltage regulator at home for your appliances,if the voltage in your area drops from 220v to 190v,does the output of the automatic voltage regulator drops?or does it retains the 220v output?

4 5425


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Un-Answered Questions { Electrical Engineering }

what do u understand from filter factor of reactor?

1517


what are the applications of PLC?

1528


in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter

1688


What is big transformer parts and their function ? Ty

1662


why we used ZNO in Lightning arrester.

1526






What is the use of mc( moving coil) in dc voltmeter and dc ammter and what is the use of ( moving iron)in ac voltmeter nd ac ammeter

2348


for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

1499


What is servo motor and what are different types of servo motor

1865


what is the difference between vector scale and vector diagram?

3752


kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased

2139


why wire sizes are 3/29 or 7/29 and why not wire sizes are 2/29 or 6/29?

4649


What is force on parallel conductors ?

631


Can clean earth cable be considered as low current cable

1536


why impudance relay used for medium transmission power system? why not others?

909


When will you multiply and devide with derating factors to the actual value while sizing the cable?

1477